SLP hot air eliminators-- For me, riding in Spring Temps of 45-55* at 9,000', my sled was overheating and causing vapor lock. Each time we stopped for a break I had to raise the hood otherwise it took forever to start. The SLP solved the problem.
The SLP cold air intake solved the same problem. I just decided to go the full monty on the SLP system. I could not see any difference in cold temps.